Post restoratively, what can you do to predict if a lost papilla will regenerate enough to eliminate the dark triangle?
A. Probe the interproximal and the facial bone, if the osseous scallop is 3.0 mm or more, there is a very high probability that the papilla will completely fill the gingival embrasure
B. Probe the biologic width, if it is 2.0 mm or more at the midline, there is a very high probability that the papilla will completely fill the gingival embrasure
C. Probe the interproximal bone, if it is 4.0 mm or less apical to the interproximal contact, there is a very high probability that the papilla will completely fill the gingival embrasure
D. You cannot predict with any degree of certainty whether or not the papilla will regenerate enough to eliminate the dark triangle
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